Slow Cooker Sloppy Joes - Valerie Bertinelli

Ingredients

• 1 tablespoon canola oil
• 2 1/2 pounds ground sirloin
• 3/4 cup chopped celery
• 1 small yellow onion, chopped
• 1 tablespoon chopped garlic
• 1 cup tomato sauce
• 1/2 cup lemon-lime soda
• 1/2 cup ketchup
• 2 tablespoons yellow mustard
• 1 tablespoon ground cumin
• 1 tablespoon Worcestershire sauce
• 1 teaspoon kosher salt
• 1 teaspoon dried oregano
• 1/2 teaspoon black pepper
• 3 tablespoons apple cider vinegar
• 8 hamburger buns